Right now, I am running a K&N filter in my 98 Trans Am. The part number is 33-2035. It came with the aftermarket Ram Air hood and airbox kit that I purchased for the car. The K&N filter lists for mid 90's Corvettes and Trans Am WS6s. I was considering going back to a paper filter. I did a cross reference to the K&N part and found several suspected matches. Then I discovered a problem. The K&N filter measures 1.06in in height. I purchased two different ACDelco filters, A1097C and A1097CF, and found out that both are around 1.50in in height, even though they are the same width and length. They will not fit in the airbox that I have in the car. Looked further at other brands and found around the same heights. I cannot find one that is the same height as the K&N. Any advice and/or help?